Engine.



F. W. LAKE.

ENGINE.

APPLICATION TILED JAN.13,1911. 1,040,700. Patented 001;. s, 1912.

2 SHEETS-SHEET 1.

Witnesses Inventor F. W. LAKE.

Patented Oct. 8, 1912.

2 SHEETS-SHEET 2.

Liv) wifn ss s X Inventor YWJd LQJ/K (MA FRANKLIN W. LAKE, 01'? KINGSTON, ONTARIO,

UNITED srarns rarnnr ()FFIGE.

CANADA, ASSIGNOR OF ONE-THIRD TO JOSEPH B. GOOKE AND ONE-THIRD TO ROBERT N. F. MCFARLANE, BOTH 0F KINGS- TON, CANADA.

Specification of Letters Patent.

ENGINE.

Patented ()et. 8,1912.

To all whom it moy'conccrn:

Be it known that I, FRANKLIN W. LAKE. a citizen of Canada, residing at 318 Queen street, in the city of Kingston, inthe county of Frontenac, in the Province of Ontario, Canada, have invented a new and useful Engine, of which the following is a specification.

My invention relates to improvements in engines and the objects of my improvements are, first, to save a large per cent. of the fuel required by other engines in producing the same amount of power; second, to more perfectly utilize the first impulse of the crplosion of gas in the cylinder; third, to provide perfect means of. safety in case of hack-tin 'ing or pro-igniting; fourth, to have a much lighter and more compact engine in proportion to the strength and durability of the same; fifth, to have only light reciprocating parts, and thereby avoid the vibration caused by the ordinary engine; sixth, to provide an easy engine to start/and control without wasting of the driving element. I attain these oh ects hy the mechanism illustrated in the accompanying drawings. which are arranged as the engine would he tor gasolene. The arrows showing direction of rotation for eccentric pistons and valve.

Figure 1. is a sectional end view on line X. X. of Figs. 5 and 6 showing the position of the driving eccentric piston A and the piston plate B, and the rotary valve t", at the time the explosion takes place. l ig. 2. is a sectional view on line V. V. Fig. and 6 showing the position of the compressing piston D. and piston plate F. at the time of the explosion. Fig. 3. is a sectional view on line X. X. of Figs. and (3 showing the osition of the driving eccentricpiston A. and plate B and valve (.1 at the time the burnt gas or exhaust is starting to escape at 19. Fig. 4.. is a sectional view on line V. V. l igs. 5 and 6 showing position of compressing eccentric piston I). and plate E, at the time the exhaust port 19 is starting to open. Fig. 5. is a top view ot engine show- .ing driving cylinder F. and compre sing cylinder G. and compression chamher Tl. 7. Z. Figs.

Fig. (3. is a sectional view on line 1 and 3 but the eccentric piston is shown at its extreme point, from the compression chamhcr II. Fig. 7. is an enlarged sectional view oil a corner of an eccentric piston, marked by crosses. Fig. 6, showing how the corners of the eccentric pistons are recessed to admit of the rings to which the piston plates are hinged and showing the hall hearings which relieve the friction between the piston plates and the eccentric pistons. the sectional views the eccentric pistons are not in section excepting in Figs. 3 and 7.

Similar letters and numbers refer to similar parts throughout the several views.

The two eccentric pistons or cranks A. and l) are placed on opposite sides ot the main shaft 20. Each eccentric piston making connection with the sides of the cylinders by a roller 15 Figs. 13 and 7, the roller protruding from the eccentric piston to retain the driving element keeping the same from passing between the eccentric piston and the cylinder wall.

A. hole larger in diameter than the roller is hored near the edge of eccentric pistons so as to cut through the side of the same, the cut through the side of eccentric piston being less in width than the diameter of roller thus allowing the roller to come in contact with cylinder wall .hut preventing same from comin out farther than desired. A small groove 20. Fig. 3 is cut in one side of the hole, and a light spring in the groove keeps the roller to in place. The driving element filling in the opening behind the roller holding the same more firmly against the cyliiulcr wall.

One end of the piston plates l3 and E are hinged to thc luside of the walls of the cylinders and the other end of the piston plates are hinged to rings 12), the rings heing around each end of the eccentric pistons, keeping the piston plates in connection with the eccentric plFiiIHF- The rings 13 are supplied with roller or hall hearings 14 which any the weight of the pressure on the one cm] of the piston plates and apply the pressurcto the eccentric pistons.

The corners ot? the eccentric pistons are recessed or cut away Fig. 7. so that the out side oi the rings 13 set; [lush with the outside of the sides and ends of the eccentric pistons. The piston plate hinge is secured to the outer ring 13, Fig. 7. The rivethole shown (in section) in ahont the middle of the ring to show which ring is lliil lt' fast to the hinge oi the piston plate. This outer ring does not revolve hut works lik an or dinary eccentric hand to keep the 1 i ion nla in connection with the c entrii' l The L shaped ring Fig. 7. covering the opening which contains the-roller 15. The end edge .of the piston of the roller 15 working against the L shaped ring. The inner ring containing the two shallow V shaped grooves Fig. 7. affords a convenient method of getting a suitable hard surface for the balls 14xof the hearing. The L shaped ring, and the inner ring with the V shaped grooves, revolve With the cocentric piston, but are left free to move around the same, so as to distribute the wear around the rings.

The hinge connecting the piston plate to, the rings 13 may consist of a light casting of the same length as the eccentric piston, the ends of the hinge casting are riveted or otherwise secured to the outer rings 13, the hinge casting not touching the eccentric piston between the rings. The other part of the bin e can be a roller? (perhaps a piece of shaft ng) of the same length as the hinge. casting, the roller being inserted into the casting Tom the end, the piston plate being firmly ecured to the roller.

The dges of the piston plates B and E are fitted with light strips 24, Fig. 6, which work against the heads of the cylinders, to retain the gas. The light strips 24 are loosely riveted to the piston plate, or the strips 24 can be; inserted into a groove in the plate, and a light spring behind the strips keeps them in contact with the "heads of the cylinder. There is' also a curved plate 12, Fig. 3 one edge of which is attached to the hinge of the piston plates, the plate 12 not being rigidly secured to the hinge, it does not press hard against the eccentric piston, only when the driving element comes against it, then the plate 12, is held firmly against the' eccentric pistons, keeping the gas from short -circuiting there.

The rotary valve C Works in the compression chamber H. The rotary valve 0 consists of two disks P. P. one at each end of the valve and from one disk to the other is a cylindrical plate R which works against the machined faces S. S. closing the opening 18 thus retaining the gas in the compression chamber H until the roller 15 touches the point 26, Figs. 1 and 3. The rotary valve also has a baffle plate T. The baffle plate is from the front edge of the cylindrical plate to the center of the valve, and extends the whole length of the same. The two disks P. Work on two end bridges 29, Fig. 6. There is a' circular shaped opening Q, through the one disk P. the opening Q passing over the opening 0 in the end of the compression chamber. The opening '0 ad-, mits the gas into the compression chamber from the compressing cylinder. lVhcn the opening Q starts to pass opening 0 the incoming gas drives out the burnt gas from behind the bafile plate T, around theshaft 21 and so out from the compression chamber to drive out the burnt gas. The incoming gas continues to have passage from the compressing cylinder G into the compression chan'iher H until opening Q has passed opening 0 after which firing occurs.

The disk P which contains the opening Q slides against a small washer like plate 27, which encircles the opening 0, such disk P closing the opening 0 when the two open ings and Q are not together.

The disk P containing the opening Q is held against the plate 27 by a spring I, which is on the valve shaft 21. In case of a back fire in the compressing cylinder G, or pipe N, thespring I allows the disk P to leave the plate 27 and thus relieve the pressure from the explosion in the compressing cylinder or pipe N.

- The valve shaft 21 turns in flanged hearings 22. The bearings 22 are supplied with glands 23 to contain packing, to 'keeplt-ne gas from escaping. The flanges 22 areadj ustably connected to the compression chamber, so the cylindrical plate R can be kept in proper relation to the machined faces S. S. The rotary valve C is driven by a sprocket chain on equal sprocket Wheels J. J.

On the compression chamber H the safety valve plate 8 is held against the valve seat by a stiff spring 9, which is under a bar 10, the bar having a hole in each end, and has two stud bolts 11, connecting it to the compression chamber, so by turning down the nuts on the bolts 11 the desired pressure is given to the valve plate 8. When the engine is running the nuts on the safety valve bolts 11 are turned down until there is no escape at the safety valve, when an ordinary explosion takes place, but should there be a backfire or pre-ignition when the cylindrical plate R. has the opening 18 closed then the safety, valve would give the necessary relief from the overpressure.

To relieve the compression before the compressing 'eccentric piston D, when starting the engine or when the full charge of gas is not necessary for the amount of work required, there is a passage or pipe L which taps the discharge from the compressing cylinder and connects to the intake of the same,thus allowing the circulation through the pipe L of the amount of gas, not required. But by closing the valve lVl in the pipe L- then the whole charge is driven through the pipe N into the com 'n'ession chamber. Thus avoiding the burning of an unnecessary amount of gas, or dischargingunburnt gas, but taking the whole charge when desired. The valve M can be arranged to be operated by governors if desirable to do $0.; I I The gasolene vaporizer or carburetor is connected at 16 and the vapor is drawn in the compressing cylinder by the turning of the compressing eccentric piston I), while the gas that is before the piston D and piston late E is driven out at 17 through the chec valve K, through the pipe N, through the round opening 0, through the opening Q into the compression chamber II, and when the cylindrical plate It leaves one side of machined surface S the gas comes through opening 18, against driving piston plate B and eccentric piston A when it is-cxploded by a firing plug which is inserted at 28. The pressure from the explosion on piston plate B and eccentric )iStOIl A forces the eccentric piston A aroun turning the shaft 20. The movement of eccentric piston A drives out the remaining burnt' gas before it, through the opening 19 and when the roller 15 passes the opening 19 the driving charge is relieved from confinement, but not before the strength and energy of the same has been well spent.

The cylindrical plate R closes the open ing 18 While the roller 15 moves from opening 19 to point 20 when the newcharge comes against piston plate B and eccentric piston A.

The engine arranged for gasolene as de scribed would be kept from undue heat by putting atomized water through the engine with the vapor or gas. The major portion of the lubricating oil also would be given with the gasolene.

I do not claim as my invention all eccentric pistons driven by gas or steam or all devices to keep the driving element from short circniting in connection with eccentric pistons, but

\Vhat I do claim as my invention and dcsire to secure by Letters Patent is:

.1. In combination with an engine, :1 casing, the. casing having (awnings tor the admission of the driving element and the ex haust, a shaft passing through the casing, a cylinder shaped eccentric piston rigidly secured to the shaft and arranged to rotate within the casing, the side of the eccentric piston which is farthest from the shaft arranged to work close to or against the cylindrical part of the casing, a piston plate one end of which is hinged to the casing between the openings for the admission and exhaust, and the other end of the piston plate coming in contact with the side of the eccentric piston, the piston plate thus forum ing a wall or partition"from the casing to the eccentric piston between the intake and outlet openings in the casing, a recess or extension of the casing forming a receptacle for the piston plate sufiicient to adnnt the whole of the piston plate, thus allowing the piston plate to leave the path of the (BtfCtll tric piston, so the eccentric piston can make complete revolutions, substantially as described.

2. In combination with an engine, a casing, the casing having openings for admission and exhaust, a shaft passing through the casing, an eccentric piston rigidly scoured to the shaft and arranged to rotate within the casing, the side of the eccentric piston which is farthest from the shaft ar ran ed to workclose to or against the cylindi-ical part of the casing, a roller (15) inserted in the side of the eccentric piston, the opening containing the roller being larger in diameter thanthc roller and cutting through the side of the eccentric piston, thus allowing the side of the roller to pro trnde far enough to work against the cylindrical. part oi the casing, a piston plate hinged to the casing, the hinge being between the intake and exhaust openings and the piston plate connecting with the side of the eccentric piston, a recess or extension of the casing forming a rece tacle for the piston plate so the piston p ate can leave the path of the eccentric piston, substantially as described.

3. In combination with an engine, a casing, the casing having 0 enings for admission and exhaust, a sha t passin through the casing, an eccentric piston .rigit ly secured to the shaft and arranged tozrotate within the casing, the side of thc'cccentrio piston which is farthest from the shaft-arrzmged to work close to or against the cylindrical part of the casing, a roller inserted in the side of the eccentric piston and arran ed to work against the cylindrical part ot the casingf'n, piston late one end of which is hinged to the casing, the hinge being between the intake and exhaust openings, the other end of the piston plate coming in contact with the side of the eccentric piston, bands or rings (13) encircling the eccentric )iston, the one end of the piston plate being hinged to such rings, thus keeping the iston plate in corn tinual connection with t 1e eccentric piston, the said rings being sufficiently loose to allow the eccentric piston to rotate Within the same, a recess or extension of the casing forming a receptacle for the piston plate, substantially as set forth.

4:. In combination with an engine, a casing, the casing havingopcnings for intake and exhaust, a shaft passing through the casing, an eccentric piston rigidly secured to the shaft and arranged to rotate within the casing, the side of the eccentric piston which farthest from the shaft arranged to work close to or ngain$t the cylindrical part of the casing, a roller inserted in the side of the eccentric piston and arranged to work against the cylindrical part of the casing. a Piston plate with one end hinged to tho casing and the other end connecting with the eccentric piston, hands or rings encircling the eccentric piston to which one end of the piston plate is hinged, the eccentric pistonto rotate Within the"saidrings, of the eccentric piston and the" eccentric] balls or rollers inserted"'between the piston can make complete.rev01uti0ns',sub- JO sakkl bgufils 0'1 rings and'the QCCGDUEC piston, stantially'as described; v i

suci a s or rollers thus arrange to take 5 the pressure applied to the piston plate to FRANKLIN LAKE" avoid friction, a recess or extension-0f the Witnesses:

casing forming a receptacle for the piston Al M. HISCOCK,

plate so the piston plate can leave the path J. B. COOKE. 

